diff --git a/Gemfile.lock b/Gemfile.lock
index 2556ae5..901b681 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -38,8 +38,10 @@ GEM
       i18n (>= 0.7, < 2)
       minitest (~> 5.1)
       tzinfo (~> 1.1)
-    addressable (2.5.2)
-      public_suffix (>= 2.0.2, < 4.0)
+    addressable (2.8.1)
+      public_suffix (>= 2.0.2, < 6.0)
+    airbrussh (1.4.1)
+      sshkit (>= 1.6.1, != 1.7.0)
     arel (8.0.0)
     bcrypt (3.1.12)
     bindex (0.5.0)
@@ -48,6 +50,21 @@ GEM
     brakeman (4.3.1)
     builder (3.2.3)
     byebug (10.0.2)
+    capistrano (3.17.1)
+      airbrussh (>= 1.0.0)
+      i18n
+      rake (>= 10.0.0)
+      sshkit (>= 1.9.0)
+    capistrano-bundler (2.1.0)
+      capistrano (~> 3.1)
+    capistrano-passenger (0.2.1)
+      capistrano (~> 3.0)
+    capistrano-rails (1.6.2)
+      capistrano (~> 3.1)
+      capistrano-bundler (>= 1.1, < 3)
+    capistrano-rbenv (2.2.0)
+      capistrano (~> 3.1)
+      sshkit (~> 1.3)
     capybara (2.18.0)
       addressable
       mini_mime (>= 0.1.3)
@@ -118,13 +135,19 @@ GEM
     mime-types (3.2.2)
       mime-types-data (~> 3.2015)
     mime-types-data (3.2018.0812)
-    mimemagic (0.3.2)
+    mimemagic (0.4.3)
+      nokogiri (~> 1)
+      rake
     mini_mime (1.0.1)
     mini_portile2 (2.3.0)
     minitest (5.11.3)
     multi_json (1.13.1)
     multi_xml (0.6.0)
     multipart-post (2.0.0)
+    mysql2 (0.5.4)
+    net-scp (3.0.0)
+      net-ssh (>= 2.6.5, < 7.0.0)
+    net-ssh (6.1.0)
     nio4r (2.3.1)
     nokogiri (1.8.5)
       mini_portile2 (~> 2.3.0)
@@ -146,9 +169,7 @@ GEM
     omniauth-oauth2 (1.3.1)
       oauth2 (~> 1.0)
       omniauth (~> 1.2)
-    pg (1.1.3)
-    public_suffix (3.0.3)
-    puma (3.12.0)
+    public_suffix (4.0.7)
     rack (2.0.6)
     rack-test (1.1.0)
       rack (>= 1.0, < 3)
@@ -212,6 +233,9 @@ GEM
       actionpack (>= 4.0)
       activesupport (>= 4.0)
       sprockets (>= 3.0.0)
+    sshkit (1.21.3)
+      net-scp (>= 1.1.2)
+      net-ssh (>= 2.8.0)
     temple (0.8.0)
     thor (0.20.3)
     thread_safe (0.3.6)
@@ -242,6 +266,10 @@ DEPENDENCIES
   bootstrap-sass (~> 2.3.2)
   brakeman
   byebug
+  capistrano (~> 3.7, >= 3.7.1)
+  capistrano-passenger (~> 0.2.0)
+  capistrano-rails (~> 1.2)
+  capistrano-rbenv
   capybara (~> 2.13)
   carrierwave (~> 0.9)
   coffee-rails (~> 4.2)
@@ -250,9 +278,8 @@ DEPENDENCIES
   hpricot
   jbuilder (~> 2.5)
   listen (>= 3.0.5, < 3.2)
+  mysql2
   omniauth-google-oauth2 (~> 0.2.1)
-  pg
-  puma (~> 3.7)
   rails (~> 5.1.6)
   recaptcha
   sass-rails (~> 5.0)